SU844607A1 - Method of producing light weight filler - Google Patents

Description

The invention relates to the field of construction and can be used in the manufacture of lightweight porous liquid glass based bodies for lightweight thermal insulation structures and products.

Methods are known for producing lightweight aggregates by granulating a plastic mass comprising liquid glass and a filler, followed by steaming or autoclaving in a stepwise mode for 9-11 4acLlj.

The closest in technical essence and the achieved result to the invention is 5 tp method, including the preparation of a hot raw mix based on liquid glass and finely dispersed filler, its cooling, the formation of granules by crushing cooling npy mass followed by drying and heat treatment at 47 O- 595С

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The disadvantage of this method is the complex technology of manufacturing lightweight material and high heat treatment temperature.

The aim of the invention is to simplify the manufacturing technology of the easy filling. whale.

The goal is achieved by the fact that in a crumbling process, including the preparation of a raw material mixture based on liquid glass and finely dispersed filler, the formation of granules and heat treatment,

but the formation of granules is carried out from a mixture with the consistency of a thick dough by extrusion followed by heat treatment at 280-350 for 810 minutes.

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Example, In liquid glass with a silicate modulus equal to 2.8 and with a density of 1.4 g / cm cv “d, is a highly dispersed amorphous silicon dbuoxide (aero type) with a specific surface equal to

30 175 m / g, in the amount of 2O% by weight of the liquid-glass mixture.

The resulting mass with a consistency of thick dough is pushed by the screw through a perforated grill with a hole diameter of 3-7 mm at the exit of the grill holes it is cut with a knife.

The resulting granules are heated in a drum dryer with a diameter of 3008OO mm and a length of 4 m at 28–35 sPc for 8–1O minutes. The bulk weight per weight of the resulting granules is up to 125 kg / m. Durability of light weight reaches 25 kgf / cm

Claims (1)

Using this method allows you to simplify the technology of making lightweight, reduce manufacturing techniques, and reduce energy and fuel costs. The invention The method of manufacture of the lung is filled by preparing raw 446074 mixtures based on liquid glass and finely dispersed granule formation and heat treatment. distinguished by 4TOs in order to simplify the technology of making lightweight aggregate, the formation of granules is carried out from the mixture with the consistency of thick dough extrusion followed by heat treatment at 28 ° –350 ° C for 8–10 10 v t Sources of information taken into account in the examination 1, USSR author's certificate № 48157О ,, кп. C 04 B 19 / O4, 1973, 2, U.K. Patent -N91367166. C, C 04 B 19/04, publ. 1974.